shitting on the cock

"shitting on the cock" means you disappointed someone by failing to fulfill the hopes they had for you. It is usually used between friends to make fun of each other.

it comes from the brazilian expression "cagar no pau".

-"I spent the whole night wingmaning for my friend Matt "Semen" and had to entertain his crush's friend for hours and he still lost her to a random guy in the club... I'm tired of him always shitting on the cock like that"
-"I know... I've grown used to it by now"